1. The problem statement, all variables and given/known data A particle is in the n=1 state in an infinite square well of size L. What is the probability of finding the particle in the interval Δx = .006L at the point x = 3L/4? 2. Relevant equations ψ(x) =√(2/L) sin(nπx/L) 3. The attempt at a solution The problem states that because Δx is very small I don't need to do any integration. I've been integrating anyway because it's fun in this particular case- but my problem is what to do with x = 3L/4. I've integrated up to x= 0.006L in ψ2(x) and I'm getting the correct answer for if the particle was at x=L/2. What do I do here?